<ul class="nav nav-pills nav-stacked">
    <li *ngFor="let item of items">
        <a href="#">{{item.title}}</a>
    </li>
    <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
    <li><a href="#">Link</a></li>
    <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
    <li><a href="#">Link</a></li>
    <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
    <li><a href="#">Link</a></li>
    <li role="presentation" class="dropdown">
        <a class="dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false">
        Dropdown <span class="caret"></span>
        </a>
        <ul class="dropdown-menu">
            <li><a href="#">Link</a></li>
    <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
    <li><a href="#">Link</a></li>
        </ul>
    </li>
</ul>